I. Descriptive analytics

Exploratory questions of interest are: 1. How does symptom profile map to mild/moderate/severe? 2. Does symptom profile differ by underlying co-morbidity?

Answering to first question: 1. How does symptom profile map to mild/moderate/severe?

We choose to look at the most common symptoms according to UK guidelines in patients who reported that they had a Covid 19 positive test. We look at these symptoms according to whether they were reported as mild/moderate/severe Cough, followed by muscle ache are the most symptoms in patient who declared they had a Covid-19 positive test. Loss of smell and shorthness of breath are next. Yet, as observed there are different levels of severity, were mild form of symptoms are reported.

Group Count_cough Cough Count_muscle_ache Muscle Ache Count_shortness_breath Shortness of Breath Count_loss_smell_taste Loss of smell and taste
Mild 214 40.377358 136 25.660377 170 32.0754717 67 12.64151
Moderate 56 10.566038 87 16.415094 51 9.6226415 75 14.15094
Severe 9 1.698113 42 7.924528 2 0.3773585 101 19.05660

The next barchart takes into accound all other symptoms for the purpose of comparison. However, fatigue seems to have the highest countS, followed by the most common symptoms of Covid-19.

Table bellow shows the first ten most occurring symptoms taking into account the level of severity. However, the most common symptoms expressed in level of severity are Cough as a mild for, shortness of breath, fatigue, muscle ache and headache, all in a mild form.

group Event Count Frequency
Mild Cough 214 40.37736
Mild Shortness of Breath 170 32.07547
Mild Fatigue 146 27.54717
Mild Muscle Ache 136 25.66038
Mild Headache 135 25.47170
Moderate Fatigue 133 25.09434
Mild Sputum 131 24.71698
Mild Sore Throat 128 24.15094
Mild Nasal Congestion 112 21.13208
Severe Loss Smell Taste 101 19.05660
Group Count Frequency
Mild 17003 0.8628774
Moderate 2385 0.1210353
Severe 317 0.0160873

Respondents who tested covid positive have reported the 37.5-38 temperature as the most frequent.

The bellow barchart maps the patients who claimed their symptoms were overall mild. What symptoms did they have? The most prevalent symptoms are cough, fatigue, sore throat, sputum and muscle ache.

The most prevalent symptoms are cough, fatigue, sore throat, sputum and muscle ache.

Group Event Count Frequency
Mild Cough 6971 40.99865
Mild Fatigue 6112 35.94660
Mild Sore Throat 6057 35.62313
Mild Sputum 5400 31.75910
Mild Muscle Ache 5254 30.90043
Mild Headache 4805 28.25972
Mild Nasal Congestion 4184 24.60742
Mild Shortness of Breath 4041 23.76639
Mild Chills 2217 13.03888
Moderate Fatigue 2009 11.81556

Bellow chart is mapping the patients claiming their symptoms were overall moderate. What symptoms did they have?

Shortness of breath, cough, sputum fatigue as a mild form followed by moderate fatigue are the first 5 symptoms declared by the respondents of Your.md app.

Group Event Count Frequency
Mild Shortness of Breath 953 39.95807
Mild Cough 938 39.32914
Mild Sputum 791 33.16562
Mild Fatigue 746 31.27883
Moderate Fatigue 707 29.64361
Mild Sore Throat 704 29.51782
Mild Muscle Ache 679 28.46960
Mild Headache 645 27.04403
Mild Nasal Congestion 613 25.70231
Moderate Muscle Ache 504 21.13208

Bellow chart is mapping the patients claiming their symptoms were overall severe, What symptoms did they have?

Cough, sputum, sore throat, shortness of breath and headache in mild form are the first 5 symptoms.

Group Event Count Frequency
Mild Cough 93 29.33754
Mild Sputum 83 26.18297
Mild Sore Throat 69 21.76656
Mild Shortness of Breath 67 21.13565
Mild Headache 66 20.82019
Moderate Fatigue 64 20.18927
Mild Fatigue 63 19.87382
Mild Nasal Congestion 60 18.92744
Moderate Shortness of Breath 59 18.61199
Mild Muscle Ache 50 15.77287

As a conclusion we may pressume a symptom trajectory in covid-19 positive tested. Mild sore throat which then progresses to a cough, and shortness of breath?

  1. Does symptom profile differ by underlying co-morbidity?

The bar chart bellow shows symptom across co-morbidity groups. By observing the obesity and hypertensive patients, although we see a similar pattern in symptom manifestation, there are slight differences when it comes to sputum and sore throat. In hypertensive respondents sore throat is more prominent than in obese respondents, which are experiencing more sputum. This is not the same with respondent with asthma, which are experiencing sputum and shortness of breath, where sore throat comes on the fourth place, after muscle ache.

Overview of groups of respondents with symptoms and tested positive.

Looking at respondents who are covid positive and the symptoms.

Looking at respondents who declared no covid - this is visualised in order to decide whether this group shall be added to the analysis as forming the group 0.